MESON Chess Problem Database
Problem Display
PID: 59305 (b2B4/1rnR2p1/5rP1/4kP2/2Pp1NR1/2bB1P2/5QK1/6n1 w - - 0 1)
Rossomakho, Yakov V
2nd HM., Shakhmaty v SSSR, 1988
#2
11 + 9
| 721 | Variantim | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rxg6
- 2.Sxg6#
- 1...Be1
- 2.Qxd4#
- 1...Bd2
- 2.Qxd4#
- 1...Bb4
- 2.Qxd4#
- 1...Ba5
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sxf3
- 2.Qe2#
- 1...Sh3
- 2.Qe2#
- 1...Sb5
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sa6
- 2.Rd5#
- 1...Se6
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Rxg6
- Tries
- 1.Se2?
- threat
- 2.Qg3#
- 2.f4#
- 1...Rxf5
- 2.Re4#
- 1...Sxe2
- 2.Qxe2#
- 1...Sxf3
- 2.Qg3#
- 1...Rb1
- 2.Qg3#
- 1...Rb2
- 2.Qg3#
- 1...Rb3
- 2.Qg3#
- 1...Rb4
- 2.Qg3#
- 1...Rb5
- 2.Qg3#
- 1...Rbb6
- 2.Qg3#
- 1...Ra7
- 2.Qg3#
- 1...Rb8
- 2.Qg3#
- 1...Be1
- 2.Qxd4#
- 2.f4#
- 1...Bd2
- 2.Qxd4#
- 1...Sd5
- 2.Rxd5#
- 1...Se6
- 2.Rd5#
- 1...Sh3!
- threat
- 1.Sh3?
- threat
- 2.Qg3#
- 2.f4#
- 1...Rxf5
- 2.Re4#
- 1...Sxf3
- 2.Qg3#
- 2.Qe2#
- 1...Sxh3
- 2.Qe2#
- 1...Rb1
- 2.Qg3#
- 1...Rb3
- 2.Qg3#
- 1...Rb4
- 2.Qg3#
- 1...Rb5
- 2.Qg3#
- 1...Rbb6
- 2.Qg3#
- 1...Ra7
- 2.Qg3#
- 1...Rb8
- 2.Qg3#
- 1...Be1
- 2.Qxd4#
- 2.f4#
- 1...Bd2
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sd5
- 2.Rxd5#
- 1...Se6
- 2.Rd5#
- 1...Rb2!
- threat
- 1.Sd5?
- threat
- 2.Qg3#
- 2.f4#
- 1...Rxf5
- 2.Re4#
- 1...Sxf3
- 2.Qg3#
- 2.Qe2#
- 1...Sxd5
- 2.Rxd5#
- 1...Rb2
- 2.f4#
- 1...Be1
- 2.Qxd4#
- 2.f4#
- 1...Bd2
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sh3
- 2.Qe2#
- 1...Se6!
- threat
- 1.Sh5?
- threat
- 2.Qg3#
- 2.f4#
- 1...Rxf5
- 2.Re4#
- 1...Sxf3
- 2.Qg3#
- 2.Qe2#
- 1...Rb1
- 2.Qg3#
- 1...Rb3
- 2.Qg3#
- 1...Rb4
- 2.Qg3#
- 1...Rb5
- 2.Qg3#
- 1...Rbb6
- 2.Qg3#
- 1...Ra7
- 2.Qg3#
- 1...Rb8
- 2.Qg3#
- 1...Be1
- 2.Qxd4#
- 2.f4#
- 1...Bd2
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sh3
- 2.Qe2#
- 1...Sd5
- 2.Rxd5#
- 1...Se6
- 2.Rd5#
- 1...Rb2!
- threat
- 1.Be4?
- threat
- 2.Sd3#
- 1...d3
- 2.Sxd3#
- 1...Rxf5!
- threat
- 1.Qe1+?
- 1...Se2
- 2.Qxe2#
- 1...Bxe1!
- 1...Se2
- 1.Se2?
- Keys
- 1.Se6!
- threat
- 2.Qg3#
- 2.f4#
- 1...Rxf5
- 2.Re4#
- 1...Sxf3
- 2.Qg3#
- 2.Qe2#
- 1...Sxe6
- 2.Rd5#
- 1...Rb2
- 2.Bxc7#
- 1...Rb1
- 2.Bxc7#
- 2.Qg3#
- 1...Rb3
- 2.Bxc7#
- 2.Qg3#
- 1...Rb4
- 2.Bxc7#
- 2.Qg3#
- 1...Rb5
- 2.Bxc7#
- 2.Qg3#
- 1...Rb6
- 2.Qg3#
- 1...Ra7
- 2.Qg3#
- 1...Rb8
- 2.Bxc7#
- 2.Qg3#
- 1...Be1
- 2.Qxd4#
- 2.f4#
- 1...Bd2
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sh3
- 2.Qe2#
- 1...Sd5
- 2.Rxd5#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(e);P_PINR(G),XP(I)::S(F),XR(e)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);N_GUARD,XP(D)::QAR(A)
- S(a);N_GUARD::QAR(A)
- S(g);N_GUARD::R1(J)
- S(g);N_GUARD::R1(J),XS(g)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(H)::R1(G)
- S(a);OGATE,XS(F)::QAR(A),XS(a)
- S(a);XP(D)::QAB(A)
- R(f);P_PINP(D)::QAB(A)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(g);N_GUARD::R1(J),XS(g)
- S(g);N_GUARD::R1(J)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(H)::R1(G)
- S(a);N_GUARD,XS(F)::QAR(A)
- R(f);P_PINP(D)::QAB(A)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(a);N_GUARD::QAR(A),XS(a)
- S(g);N_GUARD::R1(J),XS(g)
- S(g);N_GUARD::R1(J)
- Refutation
- R(f);P_PINP(D),P_PINQ(A)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(H)::R1(G)
- S(g);OGATE,XS(F)::R1(J),XS(g)
- R(f);P_PINQ(A)::P(D)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);N_GUARD::QAR(A)
- Refutation
- S(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(H)::R1(G)
- R(f);P_PINP(D)::QAB(A)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);N_GUARD::QAR(A)
- S(g);N_GUARD::R1(J),XS(g)
- S(g);N_GUARD::R1(J)
- Refutation
- R(f);P_PINP(D),P_PINQ(A)
- Try
- B(C);
- Threat
- S(F)
- Vars
- P(c);::S(F),XP(c)
- Refutation
- R(e);XP(H)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR(A),XS(a)
- Refutation
- B(b);XQ(A)
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(H)::R1(G)
- S(g);N_GUARD,XS(F)::R1(J)
- R(f);N_GUARD,P_PINP(D),P_PINQ(A)::B(K),XS(g)
- R(f);P_PINP(D)::QAB(A)
- B(b);N_GUARD::QAB1(A),XP(c)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);N_GUARD::QAR(A)
- S(g);N_GUARD::R1(J),XS(g)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).